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    Can anyone explain to me how to work out the answer to the following question?

    Two adjacent peaks in the electrospray (ESI) mass spectrum of the β chain of haemoglobin have mass to charge ratios of 882.52 and 934.38. What is the molecular weight of the β haemoglobin chain?

    I'm a second year Biochemistry student so the simplest explanation possible would be great rather than a long complicated Chemistry one!

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